CLOSED-LOOP CONTROL OF TUNABLE OPTICAL WAVELENGTH FILTERS - Patent 1508208

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EP 1 508 208 A1

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(43)	Date of publication:
	23.02.2005 Bulletin 2005/08

(21)	Application number: 03736813.1

(22)	Date of filing: 30.05.2003

(51)	International Patent Classification (IPC)⁷: H04B 10/158, G02B 6/34, H04J 14/02

(86)	International application number:
	PCT/US2003/017433

(87)	International publication number:
	WO 2003/103192 (11.12.2003 Gazette 2003/50)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

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Priority:

30.05.2002 US 160924

(71)	Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
	Wilmington,Delaware 19898 (US)

(72)	Inventors:
	BLOMQUIST, Robert Whippany, NJ 07981 (US) BOUDOUGHIAN, George Towaco, NJ 07082 (US) ELDADA, Louay Lexington, MA 02420 (US) MCFARLAND, Michael, J. Washington, NJ 07882 (US) SHACKLETTE, Lawrence, W. Maplewood, NJ 07040 (US)

(74)	Representative: Hirsch, Marc-Roger et al
	Cabinet Hirsch58, avenue Marceau 75008 Paris 75008 Paris (FR)

(54)	CLOSED-LOOP CONTROL OF TUNABLE OPTICAL WAVELENGTH FILTERS